8 Nov
2017
8 Nov
'17
11:02 p.m.
Regarding the links and old bsd's. The binary cr3 on 1bsd works in v7.
Also, the book I'm reading has a c program that does paging. But, I'm
always off down the rabbit hole... I tried to compile the cr3.c source
and I get this error:
# cc cr3.c
Undefined:
_fout
_flush
_getc
_end
My understanding is that cc includes libc by default, so these must not
be in libc. But getc is standard lib, so what am I missing?
That source is for V6 not V7. V6 did not have the stdio lib yet, but a precursor to that.
The binary you are using has the older io routines statically linked in.
Paul